Optical properties of blue emitting Ce activated XMg2Al16O27 (X = Ba, Sr) phosphors

Here we reported that the optical properties of novel blue-emitting Ce³⁺ activated XMg₂Al₁₆O₂₇ (X = Ba, Sr) phosphors were prepared by combustion method successfully. The excitation spectrum shows a broad band extending from 280 to 380 nm, centered at 355 nm, and the emission spectrum shows intense blue emission broad band centering at 441 nm for Ba²⁺ and Sr²⁺ host lattices. XRD pattern indicates crystalline nature of prepared phosphors. SEM analysis shows morphology of the ternary-hexaaluminate based phosphor prepared by combustion method. The Ce³⁺ activated XMg₂Al₁₆O₂₇ (X = Ba, Sr) should be a promising blue phosphor for near ultraviolet-based white-light-emitting diodes.